Electronic reactive energy meters’ performance evaluation in environment contaminated with power quality disturbances

Morsi, Walid G.

doi:10.1016/j.epsr.2011.11.018

Cited by 9 publications

(6 citation statements)

References 21 publications

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“…Wavelet transform (WT) is a time-frequency tool that can decompose the input signal to different frequency bands [13]. This transform has found many applications in power systems, such as harmonic detection and power calculation [14,15]. In the WT, a signal spectrum can be decomposed into nonoverlapping frequency bands.…”

Section: Wavelet Transformmentioning

confidence: 99%

Improving the SRF method to compensate low-order harmonics under nonsinusoidal network voltages

Modarresi

Fallah²,

Ghokipour³

et al. 2016

Turk J Elec Eng & Comp Sci

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Increasing the application of power in electronic devices has increased the harmonics in power systems. Numerous methods like the synchronous reference frame (SRF) and the p-q-based method have been suggested to overcome the effects of these harmonics. The conventional SRF method provides acceptable results in harmonic compensation of high-order harmonics (higher than the fourth order), but the transient response time will be drastically increased in the presence of low-order harmonics due to the existence of a conventional low-pass filter. Furthermore, if the load terminal voltages are distorted, then the conventional SRF method will become unable to implement load current compensation. This research has used wavelet transform to overcome these difficulties. The proposed method is not only faster than conventional SRF, but it can also compensate the load currents if the load terminal voltages are also distorted. The simulation and experimental results are performed using MATLAB/Simulink and digital signal processor TMS320F28335 to verify the proposed method.

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Section: Wavelet Transformmentioning

confidence: 99%

Improving the SRF method to compensate low-order harmonics under nonsinusoidal network voltages

Modarresi

Fallah²,

Ghokipour³

et al. 2016

Turk J Elec Eng & Comp Sci

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“…[10], [11], [12], [13] Fig. 1 Electrical equipment tested In order to make the analysis of current and voltage waveforms, a number has been assigned to each lamp.…”

Section: Lamp's Influence In the Power Qualitymentioning

confidence: 99%

Study of the lamp's influence on the power quality based on voltage and current analysis

Iorgulescu

2015

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)

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The paper is intended to present a comparative analysis between the impact of incandescent lamps and that of compact fluorescent lamps in regard to the quality of the electric power. This study is based on the analysis of harmonics presence in voltage and current curves. In accordance with the European directive, the incandescent lamps have been replaced by compact fluorescent lamps. In Romania, the Electric Power National Agency -ANRE-introduced requirements for performance and quality of the electric power. The questions arise as to which equipment does influence the quality of the electric energy and how could be reduced this influence. One such equipment is the compact fluorescent lamp. The experimental study highlights that compact fluorescent lamps produce harmonics as a result of their operation. These harmonics lead to notable increased levels of the current total harmonic distortions value.

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“…Two asset management systems have been developed in [10,11] and the integration of electric vehicles and storage systems into smart grids has been detailed in [12] and [13], respectively. Lastly, the performance of energy meters under non-rated conditions, hence affected by PQ issues, are studied in [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A Closed-form Expression to Estimate the Uncertainty of THD Starting from the LPIT Accuracy Class

Mingotti

Peretto

Tinarelli

2020

Sensors

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Power quality is a wide-ranging and current topic that involves a huge effort from the scientific community. Power quality issues have to be avoided or solved in order to preserve the integrity of the network and its assets. To this purpose, several power quality indexes and measurement techniques have been developed and used by experts. This paper aims at solving the issue of having an uncertainty associated to the total harmonic distortion (THD) measurements. The idea is to obtain a close-form expression, which only requires the knowledge of the instrument transformer accuracy class, to estimate the mean value and the variance of THD. After the development of such an expression, it has been tested and stressed to confirm its effectiveness and applicability in a variety of conditions, and for harmonics up to 25th (of 50 Hz), defined by the standards.

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Electronic reactive energy meters’ performance evaluation in environment contaminated with power quality disturbances

Cited by 9 publications

References 21 publications

Improving the SRF method to compensate low-order harmonics under nonsinusoidal network voltages

Improving the SRF method to compensate low-order harmonics under nonsinusoidal network voltages

Study of the lamp's influence on the power quality based on voltage and current analysis

A Closed-form Expression to Estimate the Uncertainty of THD Starting from the LPIT Accuracy Class

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